WAEC - Mathematics (1994 - No. 11)
A string is 4.8m. A boy measured it to be 4.95m. Find the percentage error.
\( \frac{5}{16} \)%
\(1\frac{5}{16} \)%
\( 3\frac{1}{33} \)%
\( 3\frac{1}{8} \)%
25%
Explanation
4.95m - 4.8m = 0.15m
\(\frac{0.15}{4.8} \times 100%\)
= \(\frac{25}{8}\)
= \(3\frac{1}{8} %)
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